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Left Hand Thread

As you make your way through the automotive repair world, you will most certainly run across left hand thread. Most thread is traditional right hand thread, which means turning the nut or bolt clockwise will tighten the aforementioned object (turning counter clockwise loosens).

There are occasions where left hand thread is required. Left hand thread loosens and tightens opposite to regular right hand thread (turn clockwise to loosen left hand thread). If you have an object that is spinning, it may spin regular right hand items loose, and thus they use left hand thread.
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How Does A Turbo Work?

Often misunderstood, always awesome, the turbo is one of the greatest gifts to the automotive world.

At its core, an engine is an air pump, which creates the byproduct of horsepower and torque. A turbo simply increases the engine’s ability and efficiency in regards to moving air in and out of the engine. Rather than relying on the engine’s vacuum to suck air into the engine, a turbo forces the air into the engine.

A turbo has a few basic parts. Two wheels, which resemble fans, are attached to each other with a rod. The fans sit inside housings. The center section resides between the two housings and holds the bearings, as well as the oil journals and the cooling jackets.

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How A Relay Works.

A relay, in the most technical terms, is an electro magnet that acts as a switch. As the video shows, when power and ground are applied to the relay, the magnet becomes active, and the switch is completed. The infamous “clicking” one hears when a relay is activated, is the switch being magnetically drawn over to complete the circuit (please see video).

Ok, so a relay completes a circuit when power and ground are applied to it. How can we test if a relay is good in order to diagnose an electrical problem?

Most relays have a diagram of the relay right on the side of them, such as this fine relay here ….

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